How effective is mobile browser cache?

We report a study on the effectiveness of the mobile browser's cache. The study is based on the browsing history from 24 smartphone users over one year. We make two interesting findings. Firstly, increasing the cache size of the browser on smartphones will not improve the effectiveness of the browser cache very much. Secondly, revalidations greatly reduce the effectiveness of the browser cache. The findings reveal the limitations of the cache design for mobile browsers and motivate a new level of cache design and speculative revalidation and loading.